256538912

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:231

約数の個数: 144

約数和(自身を含む): 632016000

約数和(自身を除く): 375477088

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 76, 79, 98, 109, 112, 133, 152, 158, 196, 218, 224, 266, 304, 316, 392, 436, 532, 553, 608, 632, 763, 784, 872, 931, 1064, 1106, 1264, 1501, 1526, 1568, 1744, 1862, 2071, 2128, 2212, 2528, 3002, 3052, 3488, 3724, 3871, 4142, 4256, 4424, 5341, 6004, 6104, 7448, 7742, 8284, 8611, 8848, 10507, 10682, 12008, 12208, 14497, 14896, 15484, 16568, 17222, 17696, 21014, 21364, 24016, 24416, 28994, 29792, 30968, 33136, 34444, 42028, 42728, 48032, 57988, 60277, 61936, 66272, 68888, 73549, 84056, 85456, 101479, 115976, 120554, 123872, 137776, 147098, 163609, 168112, 170912, 202958, 231952, 241108, 275552, 294196, 327218, 336224, 405916, 421939, 463904, 482216, 588392, 654436, 811832, 843878, 964432, 1145263, 1176784, 1308872, 1623664, 1687756, 1928864, 2290526, 2353568, 2617744, 3247328, 3375512, 4581052, 5235488, 6751024, 8016841, 9162104, 13502048, 16033682, 18324208, 32067364, 36648416, 64134728, 128269456, 256538912]

約数ペア:

[(1, 256538912), (2, 128269456), (4, 64134728), (7, 36648416), (8, 32067364), (14, 18324208), (16, 16033682), (19, 13502048), (28, 9162104), (32, 8016841), (38, 6751024), (49, 5235488), (56, 4581052), (76, 3375512), (79, 3247328), (98, 2617744), (109, 2353568), (112, 2290526), (133, 1928864), (152, 1687756), (158, 1623664), (196, 1308872), (218, 1176784), (224, 1145263), (266, 964432), (304, 843878), (316, 811832), (392, 654436), (436, 588392), (532, 482216), (553, 463904), (608, 421939), (632, 405916), (763, 336224), (784, 327218), (872, 294196), (931, 275552), (1064, 241108), (1106, 231952), (1264, 202958), (1501, 170912), (1526, 168112), (1568, 163609), (1744, 147098), (1862, 137776), (2071, 123872), (2128, 120554), (2212, 115976), (2528, 101479), (3002, 85456), (3052, 84056), (3488, 73549), (3724, 68888), (3871, 66272), (4142, 61936), (4256, 60277), (4424, 57988), (5341, 48032), (6004, 42728), (6104, 42028), (7448, 34444), (7742, 33136), (8284, 30968), (8611, 29792), (8848, 28994), (10507, 24416), (10682, 24016), (12008, 21364), (12208, 21014), (14497, 17696), (14896, 17222), (15484, 16568)]